HKS BCD PISTON + CONROD KIT for GR Yaris 21004-AT007
Original price was: ¥404,800.¥395,000Current price is: ¥395,000.
Product Code: 21004-AT007
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Description
[Machined piston + connecting rod set G16E LOW-COMP STEP3]
A reinforced piston is a weak point of the G16E-GTS engine.
By combining it with a reinforced connecting rod, the weight balance rate is 50%, the same as the genuine product, and the vibration level is the same as the genuine product.
Features
Piston kit
Using A2618 material with high-temperature strength, it is possible to make it thinner and reduce its weight.
By manufacturing it through machining, excess material is eliminated, and weight is reduced.
By adopting a bridge structure, structural rigidity is increased, and weight is reduced.
The crown surface is shaped very similarly to the genuine product.
The area above the top ring groove is nickel-plated to improve knock and wear resistance.
The cooling oil of the three oil jets is guided to the appropriate location for effective cooling.
A two-layer coating is used to improve anti-seizure properties and reduce friction.
By shortening the piston pin, the boss part is made lighter.
By setting a dedicated pin with the appropriate thickness, weight is reduced.
Connecting rod
Uses a machined I-section connecting rod made of nickel-chrome steel.
25% stronger than the original product.
Compatible with Φ24 piston pins.
WPC surface treatment for improved fatigue strength.
Specifications
genuine | HKS LC S3 KIT | |||
---|---|---|---|---|
Boa | 87.5mm | ← | ||
stroke | 89.7mm | ← | ||
Displacement | 1,618cm3 | ← | ||
Compression Ratio | t=0.69 | genuine | 10.5 | 10.4 |
t=0.8 (0.79) | 23002-AT003 | – | 10.3 | |
23002-AT007 (S/C Pro) | ||||
t=1.0 (1.04) | 23002-AT006 | – | 10.0 | |
23002-AT008 (S/C Pro) |
Notes
It is possible to install just the piston kit or connecting rod set, but either way, the balance will be lost, and vibration will occur.
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